+/*
+ * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
+ *
+ * Licensed under the GPL v2. For licencing details see COPYING.
+ */
+
/** \file ortp.h some macros used by ortp_send.c and ortp_recv.c*/
+
+/** the possible packet types */
enum ortp_audio_packet_type {ORTP_EOF, ORTP_BOF, ORTP_HEADER, ORTP_DATA};
+/** number of bytes of the paraslash ortp header */
#define ORTP_AUDIO_HEADER_LEN 10
+/** write type of this packet to \a buf */
#define WRITE_PACKET_TYPE(buf, x) (buf)[0] = (unsigned char)((x)&0xff)
+/** get type of this packet */
#define READ_PACKET_TYPE(buf) (unsigned)(buf)[0]
+/** write the chunk time for this packet to \a buf */
#define WRITE_CHUNK_TIME(buf, x) (buf)[1] = (unsigned char)((x)&0xff);\
(buf)[2] = (unsigned char)(((x)>>8)&0xff);\
(buf)[3] = (unsigned char)(((x)>>16)&0xff);\
(buf)[4] = (unsigned char)(((x)>>24)&0xff);
+
+/** get the chunk time of this packet */
#define READ_CHUNK_TIME(buf) (unsigned char)(buf)[1] + \
((unsigned char)(buf)[2] << 8) + \
((unsigned char)(buf)[3] << 16) + \
((unsigned char)(buf)[4] << 24)
+/** write the chunk timestamp */
#define WRITE_CHUNK_TS(buf, x) (buf)[5] = (unsigned char)((x) & 0xff); \
(buf)[6] = (unsigned char)(((x >> 8) & 0xff));
+/** get the chunk timestamp */
#define READ_CHUNK_TS(buf) (unsigned char)(buf)[5] + \
((unsigned char)(buf)[6] << 8)
+/** write the stream type (header or headerless) */
#define WRITE_STREAM_TYPE(buf, x) (buf)[7] = (unsigned char)((x)&0xff)
+/** get the type of the stream (header or headerless) */
#define READ_STREAM_TYPE(buf) (unsigned)(buf)[7]
+/** write the length of the header (only used for streams with header) */
#define WRITE_HEADER_LEN(buf, x) (buf)[8] = (unsigned char)((x) & 0xff); \
(buf)[9] = (unsigned char)(((x >> 8) & 0xff));
+
+/** get the length of the header (only used for packets containing a header) */
#define READ_HEADER_LEN(buf) (unsigned char)(buf)[8] + \
((unsigned char)(buf)[9] << 8)
-